Chapter 1: Dimension

What is a DIMENSION?

• It is about unit conversion

• a derived quantity that can be measured

• an indicator of the magnitude of a physical quantity

• a derived quantity shown in terms of base quantity

What is the dimension for displacement?

• M

• L

• S

• D

What is the dimension for density?

• MLT^-1

• M³L

• ML^-3

• ML²

What is the dimension for momentum?

• MLT^-1

• MLT^-2

• ML^-3

• LT^-1

Which of the following answer is dimensionless?

• gravitational acceleration

• coefficient of friction

• circumference

• spring constant

Base unit for spring constant, k is kg s^-2. What is the dimension for k?

• LT²

• LT^-2

• ML^-2

• MT^-2

The dimension for universal gravitational constant, G is L³M^-1T^-2. What is the correct unit for G?

• kg³ m s^-2

• kg m³ s^-2

• kg³ m^-1 s^-1

• m³ kg^-1 s^-2

• YES

• NO

• YES

• NO

• YES

• NO